The bared minimum: Revealing a new phase of stellar activity in HD 166620
Four centuries ago, the Sun entered a long phase of low activity. Newly-presented data suggests that the star HD 166620 is now doing the same thing!
(almost) No Time (for stars) to Die
How long does it take for a star’s core to collapse in a supernova explosion? Today’s authors use observations to place new constraints on the explosion timescale!
Tell me the velocity of a star without telling me its velocity
Stars like hiding their ages! In today’s paper, the authors inferred velocities of thousands of stars, which will help to determine their ages!
Could Companion Stars Cause Stripped-Envelope Supernovae?
How do you make a supernova without hydrogen and helium lines? The answer may surprise you! (It’s probably binary stars)
With Great Power, Comes Great Asteroseismology
Authors of today’s paper combine powerful machine learning techniques and millions of light curves to create the first all-sky galaxy mass map.
Abandon All Hope, Ye Who Enter My Accretion Disk
“But the stars that marked our starting fall away. We must go deeper into greater pain…” -Dante’s Inferno… and AGN, apparently